Some double-pane airplane windows darken when the inner pane is rotated. The panes are
A) Polaroid filters.
B) optical fibers.
C) thin films.

Question

Quizplus · Accepted Answer

Polaroid filters are used in some airplane windows to darken the window when the inner pane is rotated. This is because Polaroid filters can block or allow light to pass through when aligned or misaligned, respectively, creating the darkening effect.

Some Double-Pane Airplane Windows Darken When the Inner Pane Is